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Studies with Alkylheteroaromatic π‐Deficient Compounds: Novel Synthesis of Thieno[3,4‐<i>d</i>]pyridazines and Phthalazines

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2

References

1989

Year

Abstract

Abstract Ethyl 1‐aryl‐5‐cyano‐1,6‐dihydro‐4‐methyl‐6‐oxo‐3‐pyridazinecarboxylates 1 react with elemental sulphur in ethanolic basic solutions to yield thieno[3.4‐ d ]pyridazines 2 . Compounds 2 readily react with electron‐deficient olefins to yield phthalazines.

References

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